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Want to know an amazing but gross thing ?

Some people in a university in my country (South Africa) have invented bricks made with urine.

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The young researchers managed to combine people’s urine, which had been collected from specially designed male urinals at the university’s engineering building, with sand and bacteria.


"The bio-bricks are created through a natural process called microbial carbonate precipitation, not unlike the way seashells are formed. Loose sand is colonized with bacteria that produce urease. The urease breaks down the urea in urine while producing calcium carbonate through a chemical reaction,” Senior Lecturer in Water Quality at UCT Dyllon Randall said, commenting on the matter.

“This cements the sand into any shape, whether a solid column or, now for the first time, a rectangular building brick,” he added.
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Should I be proud of that or embarrassed ?
windinhishair · 61-69, M
Sounds like a great idea. Human wastewater is already used to generate methane and used for power. Nitrogen and phosphorus can be removed and sold as byproducts, and the remaining biosolds are an excellent soil amendment once they are treated. Effluent can be used for irrigation or even as a feedstock for water treatment facilities to produce drinking water. So urine bricks are just another beneficial use of what is really a resource.
windinhishair · 61-69, M
@Wraithorn In some ways it is a return to the way things were done in antiquity. Human waste was often used in rice production and other farming as a fertilizer, but without the processing we put it through today. Now we have to control the methane, because it is a greenhouse gas like carbon dioxide, but 23 times more powerful.
Wraithorn · 51-55, M
@windinhishair I hear tell urine was also used for tanning leather also. Apparently it was quite useful, yes. We're going back to our roots by using technology. That's a weird thought.
windinhishair · 61-69, M
@Wraithorn Yes, it was used for tanning leather, and in cosmetics, medicine, and for cleaning purposes, among others.

https://www.theguardian.com/commentisfree/2011/mar/10/unusual-uses-of-urine
Keraunos · 36-40, M
I say proud. It reminds me of something one of my favorite authors invented about two years ago which he called "turdcrete".
Wraithorn · 51-55, M
@Keraunos I suppose any good use for Human waste is quite innovative and a small step in the direction of conservation and all that.
So if these pee bricks are going to be made are they going to call them Pricks ?
@Wraithorn "JOE!, we need another of load of pricks" "Jose, you stack the pricks like this" "que"? "like this"
Wraithorn · 51-55, M
@MarmeeMarch 🙂 I'm just trying to imagine all the adverts people will come up with. They'll have a field day with pricks.
@Wraithorn Hi, I am Joe Smith and I just finished laying Pricks on my driveway - notice the rust color - that will get darker with time and look how smooth it is. Added bonus when its over 80 degrees - pests , animals and in laws stay away.
Byron8by7 · M
This is news to me. I have heard of the saying "shit a brick," but not "piss a brick."
Byron8by7 · M
@Wraithorn Somehow, perhaps ...
Wraithorn · 51-55, M
@Byron8by7 We'll give the idea to some advertising companies. I'm sure they'd give it a good go.
Byron8by7 · M
@Wraithorn It would have to be a good go, certainly ...
Oh good just what I always wanted a house that was made out of pee.
Wraithorn · 51-55, M
@MarmeeMarch Just imagine how thrilled the pee fetish people would be. They'd pay top dollar for such a house.
windinhishair · 61-69, M
@MarmeeMarch Calcium carbonate shouldn't have an odor.
@Wraithorn a pee house - 🤢
SW-User
Wraithorn · 51-55, M
@SW-User Yes, I think I'll be proud for now.

 
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